Annual report pursuant to Section 13 and 15(d)

Tracking Stocks (Details)

v3.19.3.a.u2
Tracking Stocks (Details)
$ / shares in Units, $ in Millions
Sep. 07, 2016
agreement
May 18, 2016
USD ($)
$ / shares
shares
Dec. 31, 2019
USD ($)
shares
Nov. 26, 2019
Dec. 31, 2018
USD ($)
Dec. 03, 2018
Mar. 06, 2018
Dec. 31, 2017
USD ($)
Jan. 23, 2017
Oct. 27, 2016
Aug. 17, 2016
Apr. 15, 2016
shares
Oct. 17, 2013
Tracking Stocks                          
Number of tracking stock groups                       3  
Cash and cash equivalents     $ 1,222   $ 358     $ 1,029          
Liberty Sirius XM Group                          
Tracking Stocks                          
Number of tracking stock shares received in the Recapitalization for one share of Liberty Media common stock | shares                       1  
Cash and cash equivalents     493   91                
Braves Group                          
Tracking Stocks                          
Number of tracking stock shares received in the Recapitalization for one share of Liberty Media common stock | shares                       0.1  
Cash and cash equivalents     142   107                
Braves Group | Common Class C                          
Tracking Stocks                          
Number of subscription rights received for each share of common stock held | shares   0.47                      
Share Price | $ / shares   $ 12.80                      
Percentage discount on stock subscriptions   20                      
Pre rights offering trading period   18 days                      
Stock issued (in shares) | shares   15,833,634                      
Formula One Group                          
Tracking Stocks                          
Number of tracking stock shares received in the Recapitalization for one share of Liberty Media common stock | shares                       0.25  
Cash and cash equivalents     587   $ 160                
Sirius XM Holdings | Liberty Sirius XM Group                          
Tracking Stocks                          
Cash and cash equivalents     $ 106                    
Formula 1 | Liberty Sirius XM Group                          
Tracking Stocks                          
Investment Owned, Balance, Shares | shares     493,278                    
Percentage ownership     0.20%                    
Formula 1 | Braves Group                          
Tracking Stocks                          
Investment Owned, Balance, Shares | shares     9,084,940                    
Percentage ownership     15.10%                 20.00%  
Formula 1 | Formula One Group                          
Tracking Stocks                          
Cash and cash equivalents     $ 402                    
Braves Holdings | Braves Group                          
Tracking Stocks                          
Cash and cash equivalents     $ 59                    
Intergroup Note | Braves Group                          
Tracking Stocks                          
Repayments of Lines of Credit   $ 150                      
2.125% Exchangeable Senior Debentures Due 2048 | Liberty Sirius XM Group                          
Tracking Stocks                          
Debt instrument interest rate (as a percent)     2.125%       2.125%            
2.75% Exchangeable Senior Debentures Due 2049 | Liberty Sirius XM Group                          
Tracking Stocks                          
Debt instrument interest rate (as a percent)     2.75% 2.75%                  
1.375% Cash Convertible Senior Notes Due 2023 | Formula One Group                          
Tracking Stocks                          
Debt instrument interest rate (as a percent)     1.375%                   1.375%
1% Cash Convertible Notes Due 2023 | Formula One Group                          
Tracking Stocks                          
Debt instrument interest rate (as a percent)     1.00%           1.00%        
2.25% Exchangeable Senior Debentures due 2046 | Formula One Group                          
Tracking Stocks                          
Debt instrument interest rate (as a percent)     2.25%               2.25%    
2.25% Exchangeable Senior Debentures due 2048 | Formula One Group                          
Tracking Stocks                          
Debt instrument interest rate (as a percent)     2.25%     2.25%              
Delta Topco                          
Tracking Stocks                          
Number of stock purchase agreements | agreement 2                        
Percentage of diluted investment                   19.10%      
Interest acquired (as a percent) 20.00%               100.00%